Halsted, J A <br/><br/>
Plasma-zinc and copper in pregnancy and after oral contraceptives.  [electronic resource] 

 -  Lancet (London, England)  Aug 1968 
 - 278-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0140-6736 
<br/><br/><label>Standard No.: </label>10.1016/s0140-6736(68)92375-1  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraceptives, Oral<br/>Copper--blood<br/>Female<br/>Humans<br/>Pregnancy<br/>Spectrophotometry<br/>Zinc--blood